Latticed doors as an alternative to metal construction

In the entrances, in outbuildings, in warehouses, latticed doors are widely used. However, many people use such constructions on summer cottages, instead of the second door, which provides coolness in the house and reliably protects it from intruders. They are installed in many other rooms.

Door types

Latticed steel doors are riveted, forged, but more often assembled on welding structures.

To protect the house are usually used two types of devices, the features of which are presented in the table:

Door type	Special features
	In appearance, the usual grille, which is installed in the frame and is connected to it by loops. The kit includes: pen; lock, located in a special box, welded directly to the grid. It is rather simple to make such a door with your own hands, having a welding machine and skills of working with it. This option is good to use in openings with standard sizes.
	Despite the simplicity of the design, make them quite difficult. This is due to the presence of a large number of movable levers. By the principle of work they resemble scissors, but include not one scissors, but ten similar products. Movable door connections allow you to fold them into one or two thin strips, this creates the impression of sliding parts. In addition, to ensure easy opening, it is necessary to additionally install the sash on the rollers.

The advantages of metal door grilles are:

• Door grilles have a significantly smaller mass than metal door blind. But about the protective properties of structures below. It is much easier to saw through the rods used to secure the lock than to cut a steel sheet.

Tip: Do not use metal grilles as your main defense against intruders.

• Such designs allow you to see visitors., to communicate with them, without opening the room for the penetration of unauthorized persons. Latticed doors to the landing provide an excellent overview of the area.

• Closed lattices on the lock, allow you to leave open the main entrance doors. In this case, you can ventilate the house or apartment, without fear of penetration into the outsiders, to ensure access of light and fresh air without continuous observation of the entrance to the room.
• The price of lattice structures is much less than metal blank blocks for doors.. But if you need to make a lattice for the decoration of the facade, their cost will be higher.

Use of structures

The grille on the door is a specialized product that is not installed in any place. In addition, their scope depends on the quality of manufacture and type of door design.

It can be:

• Mounted lattice doors.

Such products are a good alternative to conventional steel structures that darken dimly lit corridors and are much higher in cost. In this case, the usual swinging grille is used.

• Rooms needing constant airing. Such as basements, warehouses, as in the photo.

• Doors or grilles for the landing.

• Residential buildings. Their feature, in addition to reliability and durability, the presence of aesthetic qualities. It can be models of swing or sliding, decorated with forged or other decors.

• Metal fire doors with grille.

Such constructions are used as fire-fighting and ventilation in mines and faces, in warehouses of food and medicines, where constant air ventilation is required, while observing the requirements of fire safety. This is provided by opening grids on the door.

Their main task is to combine two functions:

1. provide air exchange in the room;
2. stop the access of air to the room when a fire occurs.

• Entrance steel doors with a double-glazed window and a lattice.

The glass and lattice included in the construction add a certain charm to a country house or cottage. But do not forget about the right level of burglary doors. In the manufacture of products, the basic requirement for the grating - the distance between the rods: the largest cell size determines GOST 23118-99 and is 15 x 15 cm

In this case, you will need to use a special tool to penetrate into the interior of the room, which when opening will create quite a lot of noise.

Lattice door manufacturing

Instructions for the manufacture of structures is not too complicated, but to give them beauty you need some experience and understanding of the operations performed. And it will help to do everything right, the video in this article.

For welding of a lattice door round and square hire or fittings are usually used.

Tip: Use reinforcement for the manufacture of structures in the house is not worth it, because of not too aesthetic appearance. The lack of strength has a round bar.

It is best to use a square profile of 12x12 mm for welding the structure.

Manufacturing technology of the door is as follows:

• The frame is made, which is a standard rectangle with a clear geometry. All corners of the structure should be 90 °. To check the correctness of the geometry, the diagonal of the frame is measured, which should be the same.

• Going to the door leaf. It looks like the same frame that needs to be placed inside a previously welded frame. To accurately comply with its size, you need to assemble the structure right inside the box. The rod is placed near the frame, is preliminarily trimmed along the length, with a gap of about 5 mm, and is attached to the box by welding, at the end of the assembly it will be cut. So each twig is mounted on the frame. All elements are welded together.
• The interior of the canvas is filled. The square is located along the long side of the structure with a pitch of 12–15 cm. After welding long rods, short, with a pitch of about 0.5 meters, are installed. Horizontal elements can be replaced with beautiful forged parts prepared in advance.

• Loops are installed. The technology is similar to that of a regular metal door. It is better to use loop-droplets.
• Lock is fastened. It can be screw, conventional mounted, embedded or overhead.

Tip: For overhead and mortise locks, you must first weld the installation box, which additionally protects the structure from breaking.

• All places of square docking are thoroughly scalded.
• Weld seams cleaned.
• Mitts between the canvas and the door frame are cut.
• The performance of the product is checked.
• The design is painted.
• Door grille is put in place. To do this, metal pins are driven into the opening at one distance from the wall, then the lattice door leans on them, welded, and the remains of the pins are cut off. Welding places are tinted to protect the structure from corrosion.

Whatever grids on the windows and on the doors are not used - standard hinged or folding, they must ensure the safety of the protected dwelling. In this case, their finish, color and appearance play a secondary role.